package com.itheima.d14_polimorphicDemo;

public class Keyboard implements USB{
    @Override
    public void plugIn() {
        System.out.println("键盘插入");
    }

    @Override
    public void pullOut() {
        System.out.println("键盘拔出");
    }
    public void type(){
        System.out.println("打字功能");
    }
}
